SU632176A1 - Barium lanthanide tetratitanate baln2 ti4 o12 - Google Patents
Barium lanthanide tetratitanate baln2 ti4 o12Info
- Publication number
- SU632176A1 SU632176A1 SU772455021A SU2455021A SU632176A1 SU 632176 A1 SU632176 A1 SU 632176A1 SU 772455021 A SU772455021 A SU 772455021A SU 2455021 A SU2455021 A SU 2455021A SU 632176 A1 SU632176 A1 SU 632176A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ions
- barium
- titanium
- mixture
- study
- Prior art date
Links
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- Inorganic Compounds Of Heavy Metals (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
Изобретение относитс к химическим соединени м окисей титана, бари и редкоземельного элемента общей формулы и может использоватьс дл производства высокочастотных керамических конденсаторов.This invention relates to chemical compounds of oxides of titanium, barium and a rare earth element of the general formula and can be used for the production of high-frequency ceramic capacitors.
Известны титансодержащие соединени , такие как SrTiOii, CaTiOj, / gTiOj, ZrTiO , ЬлгПтОт, которые широко примен ют в производстве керамических материалов дл высокочастотных конденсаторов.Titanium-containing compounds are known, such as SrTiOii, CaTiOj, / gTiOj, ZrTiO, GlobotOt, which are widely used in the manufacture of ceramic materials for high-frequency capacitors.
Соединени с высоким значением диэлектрической проницаемости (), такие как SrTiOa, CaTiOj, обладают большим отрицательным температурным коэффициентом диэлектрической проницаемости (ТК) - - 2500-406 град- и -1500.10-6 , соответственно. Соединени с ТК, близким к нулю (± 100--10 град ), такие как MgTiOa, ZnTiO4 LnaTijPv, имеют диэлектрическую проницаемость от 13 до 50.Compounds with a high dielectric constant (), such as SrTiOa, CaTiOj, have a large negative temperature coefficient of dielectric constant (TC) - - 2500-406 degrees and -1500.10-6, respectively. Compounds with TCs close to zero (± 100–10 degrees), such as MgTiOa, ZnTiO4 LnaTijPv, have a dielectric constant of from 13 to 50.
Цель изобретени - повышение диэлектрической проницаемости керамических материалов дл изготовлени из них высокочастотных конденсаторов термостабильных и термокомпенсирующих групп по ТК .The purpose of the invention is to increase the dielectric constant of ceramic materials for the manufacture of high-frequency capacitors of thermostable and thermocompensating groups according to TCs from them.
Это достигаетс тем, что в качестве основы керамических материалов предлагаетс использовать новое соединением - барийлантаноидный тетратитанат общей формулы: BaLnaTi/Diz где 1л - La, Се, Рг, Nd, Sni, Ей,This is achieved by the fact that it is proposed to use a new compound as the basis for ceramic materials — barilanthanide tetratitanate of the general formula: BaLnaTi / Diz
Полученное соединение ,,j в зависимости от лантаноида обладает 805 и ТКе 100-(-750)10 град- при малом tg (tgS-угол диэлектрических потерь).The resulting compound ,, j, depending on the lanthanide, has 805 and TKe 100 - (- 750) 10 degrees - with a small tg (tgS-angle of dielectric losses).
Синтез соединени провод т выделением The synthesis of the compound is carried out by isolation.
15 из растворов солей исходных элементов при рН 8 - 9 смесью карбоната аммони и аммиака с последующей прокалкой осадка при 1100°С или из смеси двуокиси титана, окиси редкоземельного элемента и углекислого 15 from solutions of salts of the starting elements at pH 8–9 with a mixture of ammonium carbonate and ammonia, followed by calcining the precipitate at 1100 ° C or a mixture of titanium dioxide, rare-earth oxide and carbonate
20 бари при 1350°С.20 bari at 1350 ° C.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772455021A SU632176A1 (en) | 1977-02-23 | 1977-02-23 | Barium lanthanide tetratitanate baln2 ti4 o12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772455021A SU632176A1 (en) | 1977-02-23 | 1977-02-23 | Barium lanthanide tetratitanate baln2 ti4 o12 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU632176A1 true SU632176A1 (en) | 1979-11-15 |
Family
ID=20696506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772455021A SU632176A1 (en) | 1977-02-23 | 1977-02-23 | Barium lanthanide tetratitanate baln2 ti4 o12 |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU632176A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4757037A (en) * | 1985-03-01 | 1988-07-12 | Rhone-Poulenc Specialities Chimiques | Neodymium titanate and barium neodymium titanate, processes for their preparation, and their applications in ceramic compositions |
-
1977
- 1977-02-23 SU SU772455021A patent/SU632176A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4757037A (en) * | 1985-03-01 | 1988-07-12 | Rhone-Poulenc Specialities Chimiques | Neodymium titanate and barium neodymium titanate, processes for their preparation, and their applications in ceramic compositions |
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